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1 OVERVIEW
(4) When the module functions as a master node of DeviceNet, I/O communication
(5) When the module functions as a master node of DeviceNet, the module can
(6) Selection is available from four types of I/O communication methods when this
DeviceNet network
(7) When the module functions as a master node of DeviceNet, an I/O communication
(8) When the module functions as a master node of DeviceNet, a message
(9) When the module functions as a slave node of DeviceNet, I/O communication with
(10) When the module functions as a slave node of DeviceNet, I/O communication can
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and message communication with a DeviceNet slave node are possible.
communicate with a maximum of 63 slave nodes.
module functions as a master node in DeviceNet. They are polling, bit strobe,
change-of-state and cyclic which are defined in DeviceNet.
However, only one type of communication method can be selected for each slave
node.
Polling
Bit strobe
Slave node 1
Slave node 2
For I/O communication, see Section 3.2.1.
with input of 256 words (4,096 points) and output of 256 words (4,096 points) can
be performed.
communication of 240 byte data can be performed at one time.
input of 64 words (1,024 points) and output of 64 words (1,024 points) can be
performed.
be performed via polling.
QJ71DN91
Change-of-state
Cyclic
Slave node 3
MELSEC-Q
Slave node 4
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